Yesterday, I installed the November Update for Windows 10 on my computer, and since then, I've been having issues with my shutdowns taking an abnormally long amount of time. When I shut down my computer, the screen will shut off about a minute later, but the machine itself remains powered on for several more minutes before completely shutting down.
When I try restarting, I run in to the same issue: the screen will shut off, but the machine will remain running for several minutes before the reboot begins. I've read online that this issue can be resolved by disabling fastboot, and although it has helped improve my shutdown and startup performance, the issue is still present. Prior to installing the November Update, I didn't have any issues with shutdown or reboot times. I am running the 64-bit Professional version of Windows 10.
What can I do to resolve the issue?
Update: I used the Media Creation Tool to reinstall Windows 10 while leaving my files and programs installed. I observed the reboot issue even during the reinstall, and it is still an issue now. I also tried turning off Intel Virtualization as suggested here.
Update 2: I also tried downgrading my IMEI driver as was suggested here as well as in several other locations.